ghcide/exe/Arguments.hs
Neil Mitchell 72593a285d Make hie-core outside an IDE work better (#1895)
* Move the hie-core demo files around (they aren't really a demo anymore)

* Split the command line parsing into a separate module

* Give messages about how long starting something takes

* Make the interactive mode say what it is doing a bit more

* Add a --cwd flag to hie-core

* Take a list of files and directories for hie-core

* Update the readme to say how to test using hie-core

* Fix up the bazel file

* Add HLint exception
2019-09-10 14:52:17 +02:00

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Haskell

-- Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
-- SPDX-License-Identifier: Apache-2.0
module Arguments(Arguments(..), getArguments) where
import Options.Applicative
data Arguments = Arguments
{argLSP :: Bool
,argsCwd :: Maybe FilePath
,argFiles :: [FilePath]
}
getArguments :: IO Arguments
getArguments = execParser opts
where
opts = info (arguments <**> helper)
( fullDesc
<> progDesc "Used as a test bed to check your IDE will work"
<> header "hie-core - the core of a Haskell IDE")
arguments :: Parser Arguments
arguments = Arguments
<$> switch (long "lsp" <> help "Start talking to an LSP server")
<*> optional (strOption $ long "cwd" <> metavar "DIR" <> help "Change to this directory")
<*> many (argument str (metavar "FILES/DIRS..."))